How does two-factor authentication (2FA) work?
Passwords are no longer enough to keep your accounts safe. If someone steals or guesses your password, they can log into your account without your knowledge. To reduce this risk, many services use Two-Factor Authentication (2FA). It adds a second requirement when you log in, usually a code that changes every 30 seconds. One of […]
Are new neurons born in the adult human brain? Study revives debate
You were probably taught in high school that new neurons, or brain cells, are not born during adulthood. That it stops during your childhood. The actual picture has been more complicated: scientists have been debating among themselves for a long time as to when neurogenesis stops, although most of them believed it was possible in […]
Kerala to challenge SC order making TET mandatory for in-service teachers, ETEducation
The ruling is based on the RTE Act, its 2017 amendment, and the 2010 NCTE notification that set uniform standards for teacher qualifications Thiruvananthapuram, Kerala Education Minister V. Sivankutty on Monday said the state government will initiate legal steps against the recent Supreme Court ruling that makes the Teachers’ Eligibility Test (TET) mandatory for all […]
Trial of doctor accused of poisoning 30 patients begins in France
A French doctor accused of intentionally poisoning 30 child and adult patients, 12 of whom died, went on trial on September 8, saying before the hearing he was not responsible for the “distress” of his alleged victims and their families. Frederic Pechier, 53, worked as an anaesthetist at two clinics in the eastern city of […]
Lost in space? You might need just two stars to find your way
If you’re lost somewhere on the earth, you can use GPS or public landmarks to find your way back. Navigation in the vastness of space isn’t so easy, however — especially if you’re on a spacecraft racing billions of kilometres away from the earth. There is no GPS in space and where a landmark is […]
Witness the lunar eclipse 2025 through telescopes at a guided session in Coimbatore
What makes lunar eclipses interesting and worth observing? “There’s the whole spectacle itself,” says Obuli Chandran, founder of Mango Education. “The moon that falls in the earth’s shadow acquires a blood red or copper red colour, which is quite a sight to watch, and the causes for the shift in colour have kept scientists guessing.” […]
8 Free YouTube Channels for Rural Students in India
For students in rural India, access to quality education often comes with challenges — limited resources, fewer teachers, and the absence of coaching centres. But with free internet and smartphones, YouTube has turned into a digital classroom for millions. Education-focused channels now provide free lessons in Hindi and English, covering school subjects, competitive exams, and […]
What is Parrondo’s paradox? – The Hindu
The paradox has become a useful tool across science to explain how merging two bad options can create a better result. | Photo Credit: Lance Grandahl/Unsplash A: Parrondo’s paradox is a strange idea from game theory (and before that from physics). It shows that when two losing strategies are alternated in a particular sequence, the […]
Uncovered: how RNA, amino acids may have linked on early earth
If amino acids are imagined as the beads and RNA as the thread, enzymes like the one shown here (leucyl-tRNA synthetase) string them together. | Photo Credit: Public domain Life depends on a partnership between RNA, which stores instructions, and proteins, which do the work of building and running cells. But how this partnership began […]
Treat carbon storage like ‘scarce resource’: Scientists
PARIS: The amount of carbon dioxide that can be stored underground is vastly overestimated, new research said Wednesday, challenging assumptions about the “limitless” potential this approach holds to reducing global warming.Carbon capture and storage (CCS) is complex and costly, and critics say it cannot meet the urgent need to slash planet-heating emissions and meet the […]